Fire-fighting emergency escape ladder

Abstract

The utility model discloses a fire-fighting emergency escape ladder which comprises a platform. A fixed rotating shaft is arranged on one side of the platform. The handrail is fixedly arranged on the outer edge of the platform; the folding escape ladder comprises a first escape ladder and a plurality of second escape ladders, the first escape ladder and the second escape ladders are arranged in a mutual sliding mode, and the first escape ladder is rotationally arranged on the fixed rotating shaft; the fixing device is used for fixing the folding escape ladder in different use states; and the folding escape ladder can be rotated to enter a handrail state and a ladder state.

Description

Technical Field

[0001] This application relates to the field of fire rescue technology, and in particular to a fire emergency escape ladder. Background Technology

[0002] Fire escape ladders, also known as fire escape staircases, are building facilities used as escape routes during fires. They are required to be installed in the fire protection laws of many countries and are included in the inspection items for building fire protection licenses.

[0003] Most existing fire escape ladders are installed on the outside of balconies in the form of welded iron frames. On the one hand, they do not pose a structural burden on the building; on the other hand, being located outdoors does not occupy indoor space; and on the other hand, escaping from the outside during a fire can avoid the chimney effect. For some residential buildings, escape ladders are often installed on balconies or windows. However, most of these escape ladders occupy a lot of space and cannot be deployed quickly in an emergency. Therefore, the purpose of this application is to solve the above problems.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0005] Based on this, this application provides a fire emergency escape ladder to solve one of the aforementioned technical problems.

[0006] The technical solution adopted by this application to solve its technical problem is a fire emergency escape ladder, comprising: a platform, on one side of which is provided a fixed pivot; a railing, fixedly installed on the outer edge of the platform; a folding escape ladder, including a first escape ladder and several second escape ladders, the first escape ladder and the second escape ladders being slidably arranged relative to each other, the first escape ladder being rotatably mounted on the fixed pivot; and a fixing device for fixing the folding escape ladder in different usage states; the folding escape ladder can be rotated to enter the railing state and the ladder state.

[0007] In some embodiments, the fixing device includes a fixing pin and a locking pin, wherein the fixing pin is provided with a hole that cooperates with the locking pin.

[0008] In some embodiments, the four ends of the first escape ladder are slightly longer than the ends of the second escape ladder, and a connecting hole is provided on each of the four ends of the first escape ladder. The folding escape ladder is rotatably mounted on the fixed shaft through one of the connecting holes.

[0009] In some embodiments, the railing includes a plurality of posts and a handrail horizontally disposed on the posts. One end of the handrail is provided with a first fixing hole. In the railing state, one of the connecting holes corresponds to the first fixing hole, and the fixing pin passes through the connecting hole and enters the first fixing hole.

[0010] In some embodiments, a first locking hole is provided at the top of the armrest, and when the fixing pin enters the first fixing hole, the locking pin can enter the insertion hole through the first locking hole.

[0011] In some embodiments, the platform has a second fixing hole on one side of the fixed rotating shaft. In the ladder state, one of the connecting holes corresponds to the second fixing hole, and the fixing pin passes through the connecting hole and enters the second fixing hole.

[0012] In some embodiments, a second locking hole is provided on the top of the platform, and when the fixing pin enters the second fixing hole, the locking pin can enter the insertion hole through the second locking hole.

[0013] In some embodiments, the first escape ladder and the second escape ladder are respectively provided with a first slide groove and a second slide groove, and the other side of the second escape ladder where the second slide groove is provided is provided with a connecting slider that cooperates with the first slide groove and the second slide groove.

[0014] In some embodiments, the first escape ladder is provided with a retrieval rope that passes through the first escape ladder and the second escape ladder.

[0015] The beneficial effects of this application are as follows: When in the railing state, the folding escape ladder can fully function as a railing without occupying additional space. When a fire occurs, simply unlocking the fixing device allows the folding escape ladder to rotate around the fixed axis under the action of gravity. The first and second escape ladders will also naturally separate under the action of gravity until one side of the folding escape ladder abuts against the wall. Thus, even when not fixed, the folding escape ladder will not shake. At this point, the removed fixing device can be inserted into the preset position to further enhance the structural strength of the ladder, thus entering the ladder state. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the folding escape ladder railing in this application.

[0018] Figure 2 This is a schematic diagram of the folding escape ladder in the present application.

[0019] Figure 3 This is a cross-sectional view of the ladder fixing device installation in this application.

[0020] Figure 4 This is a schematic diagram of the connection relationship of the folding escape ladder railings in this application.

[0021] Explanation of reference numerals in the attached diagram: 1. Platform; 11. Fixed pivot; 12. Second fixing hole; 13. Second locking hole; 2. Railing; 21. Post; 22. Handrail; 221. First fixing hole; 222. First locking hole; 3. Folding escape ladder; 31. First escape ladder; 311. Connecting hole; 312. First slide; 32. Second escape ladder; 321. Second slide; 322. Connecting slider; 34. Retractable pull rope; 4. Fixing device; 41. Fixing pin; 411. Insertion hole; 42. Locking pin. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0023] In the embodiments of this application, please refer to Figure 1-4 As shown, this application provides a fire emergency escape ladder, mainly comprising: a platform 1, on one side of which a fixed pivot 11 is provided; a railing 2, fixedly installed on the outer edge of the platform 1; a folding escape ladder 3, including a first escape ladder 31 and several second escape ladders 32, wherein the first escape ladder 31 and the second escape ladders 32 are slidably arranged relative to each other, and the first escape ladder 31 is rotatably mounted on the fixed pivot 11; and a fixing device 4 for fixing the folding escape ladder 3 in different usage states; the folding escape ladder 3 can be rotated to enter the railing 2 state and the ladder state.

[0024] Specifically, in the railing 2 state, the first escape ladder 31 and the second escape ladder 32 form a state similar to railing 2, and are held in place by the fixing device 4. At this time, the two sides of the folding escape ladder 3 are similar to the handrails 22 of railing 2, while the steps on the folding escape ladder 3 are similar to the uprights 21 of railing 2. When a fire occurs, simply unlock the fixing device 4, and the folding escape ladder 3 loses its support and rotates around the fixed pivot 11 under its own weight until one side of the fixing device 4 contacts the wall and stops. During the rotation, the second escape ladder 32 also begins to unfold under its own weight, forming a longer ladder state. At this time, the folding escape ladder 3 is supported by the thickness of the wall and platform 1 and the fixed pivot 11, which can ensure a relatively stable structure. Depending on the materials, it can bear the weight of one or more adults. Of course, to prevent accidents, the fixing device 4 can still be used in the ladder state after being disassembled in the railing 2 state, further improving the stability of the ladder state.

[0025] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0026] Reference Figure 3 As shown, in order to ensure that the fixing device 4 will not fall off due to some vibration and cause the folding escape ladder 3 to loosen, the fixing device 4 includes a fixing pin 41 and a locking pin 42. The fixing pin 41 is provided with a socket 411 that cooperates with the locking pin 42, providing double protection.

[0027] Reference Figure 1 As shown, the four ends of the first escape ladder 31 are slightly longer than the ends of the second escape ladder 32. Each of the four ends of the first escape ladder 31 has a connecting hole 311. The folding escape ladder 3 is rotatably mounted on the fixed shaft 11 through one of the connecting holes 311. This arrangement allows the fixed shaft 11 and the fixed shaft to be fixed separately or to prevent the first escape ladder 31 from affecting the second escape ladder 32 and causing it to be unable to unfold properly.

[0028] Reference Figure 2As shown, the railing 2 includes several posts 21 and handrails 22 horizontally mounted on the posts 21. One end of each handrail 22 has a first fixing hole 221. In the railing 2 state, one of the connecting holes 311 corresponds to the first fixing hole 221, and the fixing pin 41 passes through the connecting hole 311 and enters the first fixing hole 221. The top of the handrail 22 has a first locking hole 222. When the fixing pin 41 enters the first fixing hole 221, the locking pin 42 can enter the insertion hole 411 through the first locking hole 222. With this configuration, the folding escape ladder 3 can be fixed to the railing 2 state by the fixing device 4, and at this time, the fixing pin 41 can restrict the unfolding of the second escape ladder 32.

[0029] Reference Figure 1 As shown, the platform 1 has a second fixing hole 12 on one side of the fixed pivot 11. In the ladder state, one of the connecting holes 311 corresponds to the second fixing hole 12, and the fixing pin 41 passes through the connecting hole 311 and enters the second fixing hole 12. A second locking hole 13 is provided on the top of the platform 1. When the fixing pin 41 enters the second fixing hole 12, the locking pin 42 can enter the insertion hole 411 through the second locking hole 13. With this configuration, the folding escape ladder 3 can be fixed in the ladder state by the fixing device 4.

[0030] Reference Figure 4 As shown, as a sliding method between the first escape ladder 31 and the second escape ladder 32, the first escape ladder 31 and the second escape ladder 32 can naturally unfold under gravity. The first escape ladder 31 and the second escape ladder 32 are respectively provided with a first sliding groove 312 and a second sliding groove 321. The second escape ladder 32 is provided with a connecting slider 322 that cooperates with the first sliding groove 312 and the second sliding groove 321 on the other side of the second sliding groove 321.

[0031] Preferably, the first escape ladder 31 is provided with a retraction rope 34, which passes through the first escape ladder 31 and the second escape ladder 32. Specifically, the retraction rope 34 passes through the first escape ladder 31 from top to bottom, then passes through the first second escape ladder 32 from bottom to top, and finally connects to the top of the second escape ladder. When more second escape ladders 32 are needed, this process is repeated, so that when the retraction rope 34 is pulled up, the second escape ladder 32 begins to reset, which helps to retract the folded escape ladder 3.

[0032] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A fire emergency escape ladder, characterized in that, include: The platform has a fixed pivot on one side; The railing is fixedly installed on the outer edge of the platform; A folding escape ladder includes a first escape ladder and several second escape ladders, wherein the first escape ladder and the second escape ladders are slidably arranged relative to each other, and the first escape ladder is rotatably mounted on the fixed pivot. A fixing device is used to secure the folding escape ladder in different usage states; The folding escape ladder can be rotated to enter either a railing state or a ladder state.

2. The fire emergency escape ladder according to claim 1, characterized in that, The fixing device includes a fixing pin and a locking pin, and the fixing pin is provided with a hole that cooperates with the locking pin.

3. A fire emergency escape ladder according to claim 2, characterized in that, The four ends of the first escape ladder are slightly longer than the ends of the second escape ladder. Each of the four ends of the first escape ladder has a connecting hole. The folding escape ladder is rotatably mounted on the fixed shaft through one of the connecting holes.

4. A fire emergency escape ladder according to claim 3, characterized in that, The railing includes several posts and a handrail horizontally mounted on the posts. One end of the handrail has a first fixing hole. In the railing state, one of the connecting holes corresponds to the first fixing hole, and the fixing pin passes through the connecting hole and enters the first fixing hole.

5. A fire emergency escape ladder according to claim 4, characterized in that, The top of the handrail has a first locking hole. When the fixing pin enters the first fixing hole, the locking pin can enter the insertion hole through the first locking hole.

6. A fire emergency escape ladder according to claim 3, characterized in that, The platform has a second fixing hole on one side of the fixed rotating shaft. In the ladder state, one of the connecting holes corresponds to the second fixing hole, and the fixing pin passes through the connecting hole and enters the second fixing hole.

7. A fire emergency escape ladder according to claim 6, characterized in that, A second locking hole is provided on the top of the platform. When the fixing pin enters the second fixing hole, the locking pin can enter the insertion hole through the second locking hole.

8. A fire emergency escape ladder according to claim 1, characterized in that, The first escape ladder and the second escape ladder are respectively provided with a first slide groove and a second slide groove. The second escape ladder is provided with a connecting slider that cooperates with the first slide groove and the second slide groove on the other side of the second slide groove.

9. A fire emergency escape ladder according to claim 1, characterized in that, The first escape ladder is equipped with a retrieval rope, which passes through the first escape ladder and the second escape ladder.

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